The selected control cannot store data, because it is bound to a repeating field or group, but the control itself does not ...

The selected control cannot store data, because it is bound to a repeating field or group, but the control itself does not repeat. You can do one of the following:To change the control to a repeating control, right-click the control and click Change To.To bind the control to a non-repeating field or group, right-click the control, and then click Change Binding.To modify the field or group so that it does not repeat, in the Fields task pane, double-click the field or group, and then clear the Repeating check box.